Power head for pumps



July 28, 1931.

P. A. MYERS POWER HEAD FOR PUMPS Filed July 24, 1929 4 Sheets-Sheet 1 FIG.

g Im r2 2 9 i I s F I 4 i E E flllllllit lN VENTOR PH/L/PA. MYERS.

A TTOR NE Y July 28, 1931. P. A. MYERS 1,816,190

POWER HEAD FOR PUMPS Filed July 24. 1929 4 Sheets-She et 2 INVENTOR PH/L/PA.MYER5.

JOJW'MH Jowkw A TTORNEY July 28, 1931. P. A. MYERS POWER HEAD FOR PUMPS Filed July 24. 1929 4 Sheets-Sheet 3 a m F A TTOA NE Y July 28, 1931. P. A. MYERS POWER HEAD FOR PUMPS 7 Filed July 24, 1929 4 Sheets-Sheet 4 INVENTOR Rq/L/PA. MYf/PS A TTOKNL Y Patented July 28, 1931 I UNITED STATES PATENT OFFICE PHILIP A. MYERS, OI ABHLAND, OHIO, ASSIGNOR TO THE 1'. E. MYERS AND B30. C01!- PANY, OF ASHLAND, OHIO, A. CORPORATION 01 O HIO POWER HEAD FOR PUMPS Application filed July 24,

It has particularly for its object a device of this kind, in which a rotary motion 1s converted into a reciprocatory motion with all the thrusts in the same plane and with i the power applied equally on each side of gear case the plane of thrust.

It is also an object of this invention to provide a removable guide case for the purpose of permitting adjustment and repairs without disassembling the whole mechanism, and one in Which large, heavy guides are eliminated and one in which side slots are eliminated.

It is also an object of this invention to provide a means for equal distribution of lubricants to various parts of the mechanism, the pump for the distribution of the lubricant being located in the lower part of the ear case, which also serves as a container or the lubricant.

It is also an object of this invention to rovide a complete and unitary inclosure or all of the working parts, and one in which there is provided a vertical guide for the reciprocating parts of the apparatus to which the power is applied without tortional movement, and the power s so applied as to always operate in the same plane with respect to the load.

These and other advantages will appear from the following description, taken in connection with the drawings.

Referring to the drawings:

Figure l is a side elevation partly in section, showing the general arrangement of the ower head.

Figure 2 is a plan view of the power head showing the case in section and the motor drive shaft removed.

Figure 3 is a rear elevation shown the with the guide case remove Figure 4 is a section on the line with the piping shown in full lines on Figure 2.

Figure 5 isa section through the pumping mechanism for the oil. p

The numeral 1 is used to designate the gear case as a whole. It is substantially 1929. Serial No. 860,547.

rectangular in shape, having lower and upper walls and side walls 2, and a lower rear wall 3.

The upper part of the rear wall is cut away to provide two flanges 5. Extending outwardly from the rear wall and in a line with the flanges 5 are flanges 4. The purpose of the flanges 4 is to support a guide case This guide case has a rear wall 7 and slde walls 8. The guide case also has outwardly extending flanges 9 which rest against the flanges 4. For the purpose of holding the guide case to the gear case there is provided a plurality of bolts 10 which pass through holes in the flanges 4 and 9.

The guide case extends from the upper part of the gear case about half way to the bottom thereof, and has attached to the bottom thereof a splash plate 11. This splash plate is attached to the guide case by means of screws 12, and has in the lower part thereof an opening 13 through which a pump rod passes. The upper surface of the splash plate is hollowed out to form an oil trough 14, which extends into a downwardly directed oil drain 15 for the purpose of conveying the oil back into the lower part of the gear case, where it can be repumped for lubricating purposes.

On each side of the gear case there is a bearing 16. Rotating within the gear case is a pair of gears 17, each of which has extending outwardly therefrom a shaft 18, which rotates in and is supported by the bearing 16. For the purpose of driving the gears 17 there is mounted in the walls of the gear case a shaft 19, which has mounted thereon in engagement with the gears 17 two pinions 20. The shaft 19 may be 0 erated by any suitable means, a motor or t e like, for the purpose of rotating the pinions 20 to operate the gears 17.

Near the outer circumference of the gears 17 there is a wrist pin 21 which receives-the bearing end of a connecting rod 22. The other end of the connecting rod 22 is U- shaped, indicated by the numeral 23, and has on the ends thereof bearings 24. Working in the bearings 24 is a shaft 25, which: has on each end thereof a roller 26 which 33 connected to the bearing on the upper end of this corner of the serves as a guide roller in the u and down movement of the piston rod. he upper end of the piston rod is indicated by the numeral 27, which is used to desigrdiate the The pin 25 extends through the bearings 24 and 27, and-has on the outer end thereof rollers 26. The rollers 26 in the verticalmovement of the pump rod 28 are guided by means of the flanges 5 and the rear wall- 7 of the guide case. The flanges 5 and the rear wall 7 of the uide case are arranged in regard to each ot er so as to provide just space for the accommodation of the rollers 26, and will permit the vertical movement thereof.

The numeral 29 is used to designate a discharge head of the pump, which has at- .tached to the upper part thereof an upper cylinder 30. The pump rod 28 reciprocates in the upper cylinder, and has attached thereto a guide and plunger mechanism 31. Thepump rod 28 is adapted to operate any kind of pump, either a single or a doubleacting pump, and is given a vertical reciprocatory movement by means. of the rotation of the gear 17 through the connecting rod 22. 7

There is located in the lower left hand gear case a lubricant pump 32. from this pump is'a pump rod piston bearing 2"1', as indicated by the numeral 34. There is also extending from the pump an oil pipe 35, which throws oil into the upper part of the guide case for the purpose of lubricating the bearings on the upper ends of the connecting rod 22 and the pump rod 28. 330 indicates a ball for controlling the opening 336 in the pipe 33. There is located on the upper end, just beneath these bearings, an oil deflector 36. After the oil has passed through and around and over these hearings it is collected in the oil trough 14 and drips back from the oil drain 15 into the lower part of the gear case, ready to be re-pumped for lubricating purposes. The supply of oil in the lower part of the gear case is suflicient to lubricate the gear 27 without any additional lubricating means since these gears dip into the oil that is in the oil reservoir formed by the lower part of the gear case.

The connection between the splash plate and the pump rod is such that no oil is permitted to pass between the pump rod and the walls of the opening through which it passes. For the purpose of aiding in preventing the escapeof oil through the splash plate the part of the splash plate immediately surrounding the pump rod is elevated so that the oil will readily flow away and into the trough 14.

I desire to comprehend within my invention such modifications as may be clearly Extending the bottom of claims and/ the scope :secure by Letters Patent is:

V 1. In a power head or pumps, a gear case forming a lubricant chamber, a guide case removably attached to said gear case, the bottom of said guide case formin a splash plate with a drain extending into saidgear case, and means for conveying lubricant from said lubricant chamber to said guide case.

2. In a power head for pumps, a gear case formin a lubricant chamber, a guide case remova 1y attached to said gear case,

said guide case being removable and forming a splash plate with a drain extending into said gear case, and

means for conveying lubricant from said lubricant chamber to said guide case.

3. In a power head for pumps, a gear case forming a lubricant chamber, a guide case in which bearings reciprocate removably attached to said gear case, the bottom of said guide case being removable and forming a splash plate with a drain extending into said gear case, and mechanical means in said gear chamber for conveying lubricant from said lubricant chamber to said guide case directly over said bearings.

4. In a power head for pumps, a gear case forming a lubricant chamber, a guide case attached to said gear case forming with the gear case a guide, a reciprocative pump rod in said guide case and guided at one end by said guide, means in said gear case connected to said rod for causing the rod to reciprocate, and means in sald gear case operatively connected to said rod to force lubricant from said lubricant chamber to said guide case.

5. In a power head for pumps, a discharge head, a gear case supporting said discharge head and forming a lubricant chamber, a guide case attached to said gear case, a pump rod extending from said discharge head into said guide case, rollers on the end of said pump rod guided'by said guide case, means in said gear case operatively connected to said rod for reciprocat ing said rod, and means in said gear case operatively connected to said rod for conveying lubricant into said guide case.

6. In a power head for pumps, avertically disposed and vertically moving pump ,rod, a main casing, means to guide said pump rod on the outside of said main casing, and means from the inside of said casing extending to the outside of the casing for actuating said pump rod, the point of connection.- therebetween lying wholly outside of the main casing.

7 In a power head for pumps, a verticall disposed and vertically moving pump ro a main casing, means to guide said pump rod on the outside of said main casing, and means from the inside of said casing extending to the outside of the casing for actuating said pump rod, said means comprising a pitman having reciprocatory motion where attached to the pump rod and circular motion where attached to the driving mechanism of the main casing, the point of attachment therebetween lying wholly outsideof the main casing and beyond the guide surface thereon.

8. In a power head for pumps, a vertically disposed and vertically moving pump rod, a main casing, means to uide said pump rod on the outside of sait i main casing, and means from the inside of said casing extending to the outside of the casing for actuating said pump rod, said means comprising a pitman having reciprocatory motion where attached to the pump rod and circular motion where attached to the driving mechanism of the main casing, said pump rod and pitman being adapted to travel in the same vertical plane.

9. In combination, a vertical pump rod, means on either side thereof adapted to guide said pump rod vertically without tortional movement, means to raise and lower said pump rod connected between said guiding means and said rod and moving in the same plane as said pump rod.

10. In combination, a vertical pump rod,

means on either side thereof adapted to guide said pump rod vertically without tortional movement, means to raise and lower said pump rod connected between said guiding means and said rod and moving in the same plane as said pump rod, and means to drive said raising and lowering means disposed on each side thereof in planes parallel thereto.,

In testimony whereof I afiix my signature.

PHILIP A. MYERS. 

